Long-time iPhone users know that Apple makes â€œgood newsâ€ announcements early in the day, a deliberate step to maximize their exposure, and sneaks less positive ones out when the stock marketâ€™s closed or journalists are just about to leave the office. So the fact that Appleâ€™s iPhone partner AT&amp;T announced huge changes to its iPhone and iPad data plans in the dead of night with no assistance from Apple should tell you something:â€¦